Operating mechanism for dumping-bodies.



B. S. MOORE.

OPERATING MECHANISM FOR DUMPING BODIES.

APPLICATION FILED FEB. 1. 1917. w Patented Apr. 30 1918.

2 SHEETS-SHEET I.

B. S. MOORE.

OPERATING MECHANISM FOR DUIVIPING BODIES.

APPLICATION FILED FEB. I, 19H- Patented. Apr. 30,1918.

2 SHEETS-SHEET 2'.

BENJ'IMAN S. MOORE, OF JOLIET, ILLINOIS.

\ 7 OPERATING MECHANISM FOR DUMPING-BODIES.

Specification of Letters Patent. I

Patented Apr. 3d, 191%.

Application filed February 1, 1917. Serial N 0. 145,859.

To all whom it may concern:

Be it known that I, BENJIMAN S. Moonn, a citizen of theUniteol States,residing at Jolict, in the county of Will and State of Illinois, haveinvented certain new and useful Improvements in Operating Mechanism forDumping-Bodies, of which the following is a specification.

This invention relates to improvements in dumping trucks and wagons, andmore particularly has reference to the mechanism for operating thebodies thereof to effect the dumping of their contents.

The invention contemplates the provision of improved mechanism for thepurpose stated whereby the bodies may be moved to dumping position withminimum eXpenditure of energy by the operator and as readily restored tonormal position, the parts being so organized and related as to conformto the varying angles of inclination of the body, and maintain thelatter at any angle to which the same may be moved, without derange mentof the cooperative relation of the parts.

The invention further has in view the provision of mechanism of thegeneral type indicated designed for compact assembly of its parts, thusrequiring but small space for its accommodation when associated with abody, and thereby adapting it particularly for use upon the dumpingbodies of motor trucks. It is not, however, restricted to such use butcapable of employment on dumping bodies generally, whether applied toselfpropelled vehicles or dumping wagons.

Other objects and advantages will appear as the nature of theimprovements is better understood, the invention consistingsubstantially in the novel construction, combination and arrangement ofparts hereinafter fully described, illustrated in the accompanyingdrawings and finally pointed out in the appended claims.

In the drawings Figure 1 is a side elevation of a dumping motor truckequipped with the herein described invention.

Fig. 2 is a transverse sectional view of a portion of the truck body andthe chassis illustrating the manner of mounting the herein describedinvention thereon and its relation to the body.

Fig. 3 is a sectional plan view of the structure illustrated in Fig. 2.

Fig. 4 is a longitudinal sectional view of a portion of the body andchassis, together with the herein described operating mechanism andfurther illustrating the relation of the latter to the body and chassis.

Fig. 5 is a sectional plan view, on a slightly enlarged scale, taken onthe line 5-5, Fig. 4..

Fig. 6 is a detail plan view of the swivel block and the supportingsegment therefor in assembled relation.

Figs. 7 and 8 are detail perspective views of the swivel block andsupporting segment illustrated in Fig. 6showing these parts on anenlarged scale.

Referring now in detail to the accompanying drawings, the numeral 10designates the body of a dumping motor truck, and 11 the chassisthereof. The body 10 is pivotally connected to the chassis 11 at a pointadjacent to the rear end of the latter, as at 12, so that the body maybe moved to the inclined dumping position illustrated in the dottedlines of Fig. 1. This is in accordance with the usual practice of theart.

Arranged on the under side of the chassis 11, and extending transverselythereof is a support 13, which is preferably in the form of' a channeliron, said support being suitably connected to the chassis 11, andprojecting upwardly through said support 13 is a shaft 14 at the lowerend of which is mounted a worm gear 15 in mesh with a worm pinion 16carried by a transverselyextending shaft 17 mounted in depending hangers18 on the support 13. One end of the shaft 17 projects at one side ofthe chassis 11 and is there provided with an operating handle 19 throughthe medium of which said shaft 17 is rotated. At the upper end of theshaft 1% is connected a universal joint 20, of approved construction,said joint being also connected to the lower end of a screw-threadedbody-actuating shaft 21. It is through the shaft 21 that the body 10 israised and lowered in the manner hereinafter described.

An anti-friction bearing, such as a ball bearing 22, is interposedbetween the universal joint and the support 13 to facilitate easymovement of the shaft 14. This antifriction hearing may be of anyapproved construction.

The body-actuating shaft 21 projects upwardly through a U-shaped notch23 formed in the forward end of the floor of the body 10, and said shaft21 engages an internally screw-threaded annular swivel block 24supported immediately below said opening or notch 23. The block 24 isprovided with oppositely-extending trunnions 25, which trunnions arereceived by bearings 26 formed in a supporting segment 27, and saidswivel block 24 is thereby enabled to rock in said bearings 26 under theangular movement of the shaft 21 as it conforms to the varying positionsof the body 10 when being moved to dumping position and restored to itsnormal relation to the chassis 11, Immediately over the segment 27 is aholding plate 28 which spans the bearings 26 and the trunnions 25 of theblock 24, and said block 24 is thereby held within the supportingsegment 27 but capable of being rocked in the,

tact with the contents of the body 10 a U- shaped guard 31 is provided.This guard extends upwardly from the notch 23 and has attaching flanges32 at its respective sides, a base flange 33 being also provided andseated upon the bottom of the body 10.

This base flange 33 is secured to the bottom by the bolts 29 previouslyreferred to.

A spacing collar 34 held by a set screw 35, or its equivalent, ismounted on the shaft 14 between the gear 15 and support 13 to hold thebearing 22 in proper adjustment, and at the same time to lock the shaft14 against undue vertical movement.

As before stated, the herein described mechanism may be applied todumping motor trucks or ordinary dumping wagons, and with the partsassembled in the manner described it will be apparent that on rotationof the shaft 17 the pinion 16 and gear 15 will impart rotation to theshaft 14. Through the universal joint 20 the bodyactuating shaft 21 willalso be rotated. As the shaft 21 has threaded engagement with the swivelblock 24, the latter being mounted for movement with the body 10, theblock 24 will follow the screw-threads of the shaft 21 in accordancewith the direction of rotation of the latter. In one direction the block24 will rise upon the shaft 21, and this movement is efi'ectual to raisethe body 10 to the desired angle of inclination for the dumping of itscontents. In this movement, however, it will also be seen that theuniversal joint 20 will permit the shaft 21 to follow the angularmovement of the body 10, during which the swivel block 24 is rocked inthe bearings 26 on its trunnions 25, so that regardless of the angle ofinclination of the body 10 there will be no ,derangement of theoperative relation of the working parts. It is also evident that thebody 10 will be held at any position' to which it is moved, thescrew-threaded engagement of the swivel block 24 with the shaft 21preventing movement of the body 10 until rotation of said shaft. Thiswill ermit the body 10 to be locked at any position.

If so desired, the shaft 17 may be suitably connected with the motor,when the mechanism is employed on a motor dumping truck,

so that the raising and lowering of the body 10 may be effected bypower.

I claim:

1. In mechanism of the class described, the combination with the frameof a vehicle, and a dumping bod tiltably mounted thereon, of averticallyisposed shaft carried by said frame, means for actuating saidshaft, a rocking member carried by said body, a screw-threaded actuatinmember engaged with said rocking mem er for tilting the body, and auniversal joint interposed between said shaft and said screw-threadedactuating member to permit the latter to follolw (iihe vary ingpositions of the body when ti te 2. In mechanism of, the classdescribed, the combination with theframe of a vehicle, and a dumpingbody tiltably mounted thereon, of a vertically-disposed shaft carried bysaid frame, means at the lower'end of said shaft for actuating the same,a universal joint connected to the upper end of said shaft, ascrew-threaded actuating member connected to said universal joint, and afollower having a rocking connection with said body and engaged by saidactuating memher for travel thereon during the operation of saidactuating member, whereby to tilt the body and permit the actuatingmember .to conform to the angular position of the body.

3. In mechanism of the class described the combination with the frame ofa vehicle, and a dumping body tiltably mounted thereon, of an actuatingshaft operably connected to said body for tilting the same, a universaljoint included in said shaft intermediate its ends, means to permit saidshaft to conform to the angular position of the body and to preserve itsoperative'relation thereto, and means for operating said actuatingmember.

4. In mechanism of the class described, the combination with the frameof a vehicle, and a dumping body tiltably mounted thereon, of anactuating shaft operably connected to said body for tilting the latter,a universal joint included in said shaft intermediate its ends, a memberhaving a rocking connection with said body and with which said shaft isconnected, and means for operating said shaft.

5. In mechanism of the class described, the combination with the frameof a vehicle, and a dumping body tiltably mounted thereon, of anactuating shaft for tilting said body, a universal joint included insaid shaft intermediate its ends, a swivel block having a rockingconnection with said body and with which said actuating shaft is con-'ment carried by the body and arranged at the opening ofthe body floor,said segment having bearings into which said trunnions are fitted,whereby said swivel block is adapted to rock in relation to the bodyduring the tilting movements of the latter, and means for operating saidactuating member.

7. In mechanism of the class described, the combination with the frameof a vehicle, and a dumping body tiltably mounted thereon, the floor ofsaid body having an opening, of a flexibly mounted screw-threaded shaftfor tilting said body, a swivel block arranged at the opening of thebody floor and having screw-threaded engagement with said shaft fortravel along the latter when said shaft is rotated, said block beingprovided with oppositely extending trunnions, a supporting segmentcarried by said body and arranged at the opening of the body fioor,saidsegment having oppositely disposed bearings into which said trunnionsare fitted, whereby said swivel block is adapted to rock with respect tosaid body during the tilting movement of the latter, and means foractuating said shaft.

8. In mechanism of the class described, the combination with the frameof a vehicle, and a dumping body tiltably mounted thereon, of asupporting member extending transversely of said frame, a shaftjournaled in said supporting member, means for actuating said shaft, ascrew-threaded actuating member rising from said shaft, a universaljoint interposed between said shaft and said actuating member to permitsaid actuating member to tilt with the body, and a member having arocking connection with said body and also connected to said actuatingmember and adapted to travel along the latter, whereby to tilt said bodywhen said actuating member is rotated.

9. In mechanism of the class described, the combination with the frameof a vehicle, and a dumping body tiltably mounted thereon, of a supportextending transversely of said frame, a shaft journaled in said support,means for rotating said shaft, ascrew-threaded actuating shaft extendingupwardly from the first mentioned shaft, a universal joint interposedbetween said shaft and said actuating shaft, a swivel block 'associatedwith said body and having screw threaded engagement with said actuatingshaft, said swivel block being adapted to travel along the actuatingshaft when the latter is rotated, whereby to tilt the body, and asupport carried by the body and provided with bearings arranged inopposite relation to each other, said swivel block being provided withoppositely extendin trunnions seated in said bearings, where y saidblock is capable of rocking movementin said bearings with respect tosaid body during the tilting movement of the latter.

10. In mechanism of the class described, the combination with the frameof a vehicle, and a dumping body tiltably mounted thereon, of a supportassociated with said frame, a vertically disposed shaft journaled insaid support, means for rotating said shaft, a screw-threaded actuatingshaft extending upwardly from the first mentioned shaft, a universaljoint interposed between said screw-threaded shaft and said firstmentioned shaft, a supporting segment carried by the body and providedwith oppositely disposed bearings, a swivel block associated with saidsupporting segment and provided with oppositely disposed trunnionsseated in the bearings of said segment, whereby said block is capable ofrocking movement with respect to said supporting segment, said blockhaving screw-threaded engagement with said actuating shaft, whereby saidblock is adapted to travel along said shaft on the rotation of thelatter, a holding plate arranged in super-imposed relation'to saidsupporting segment and spanning the bearings of the latter, whereby theswivel block is held within the bearings of said supporting segment, andmeans for holdingsald segment and said holding plate 1n associatedrelation with said body.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

BENJIMAN s. oons.

